With media player (0.115) with only can choose a player but never the source.
Why not declare :
local media as source
spotify as source
home mini as player
chromecast as player
And be able in media player to choose a source AND a player. With that feature we could choose a spotify playlist and cast it to an chromecast natively.
Everything.
When you open NestMini you only have local source.
When you open spotify you have spotify source but not easily cast to nest mini.
The idea is to make “media player” as a real mediaplayer.
First step select the media from any configured source
Second step choose where to cast the media